Most churches of any religion are architecture jewels.
I like sacred music like Gregorian chant or Bach's The Passion According to St. Mathew, but that doesn't make me a believer

Yes. But has more to do with history and art than any specific religious interest. Religions and history go hand in hand, especially the immensely wealthy religions who built impressive buildings - absoutely state of the art for their time. I find it easy to seperate the two.

I love stained glass I went to a catholic school for a little bit. So we had mass. I would ignore the sermons most of the time and stare at the windows haha but yes, the buildings are beautiful! I don’t blame you at all!

Yes - religious ardour can result in extraordinary architecture, extraordinary art, and extraordinary music.

What a shame it can also result in extraordinary bigotted injustice and hatred.

Not really. I will way that churches to appear to improve the skyline. Buildings designed for he functionality of worship generally dont' interest me.

Nothing wrong with admiring all plastic arts.

Arts is one of the things we can learn from religion.
In this video, Alain de Botton highlights some of the things we can adopt from religion which are obviously lacking in the secular world.